R5F101LEAFB#X0 Equivalent & Substitute Parts

Part Overview

The R5F101LEAFB#X0 is a 16-bit RL78/G13 microcontroller manufactured by Renesas Electronics Corporation, featuring 64KB FLASH memory, 4KB RAM, and 48 I/O pins in a 64-LFQFP package. This device integrates multiple communication interfaces (CSI, I2C, LINbus, UART/USART), peripheral functions (DMA, LVD, POR, PWM, WDT), and a 12-bit analog-to-digital converter. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. Substitute parts must maintain identical electrical specifications, memory configuration, and package dimensions to ensure direct compatibility in existing applications.

Substiute Parts

R5F101LEAFB#X0

Renesas Electronics CorporationIn Stock: 818R5F101LEAFB#X0 Datasheet

Current PartRFQ

R5F101LEAFB#50

Renesas Electronics CorporationIn Stock: 889R5F101LEAFB#50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R5F101LEAFB#X0 is determined by strict equivalence across the following critical parameters:

• Processor Architecture & Series: RL78/G13 core with RL78 processor
• Memory Configuration: 64KB FLASH (64K x 8) and 4KB RAM (4K x 8)
• Clock Speed: 32MHz operation
• I/O Count: 48 pins
• Package Specification: 64-LFQFP (10x10) with 64-LQFP case designation
• Voltage Range: 1.6V ~ 5.5V supply compatibility
• Peripheral Set: CSI, I2C, LINbus, UART/USART connectivity; DMA, LVD, POR, PWM, WDT functions
• Data Conversion: 12-bit A/D converter (12x8/10b)
• Environmental Compliance: ROHS3 compliance and MSL 3 rating

The R5F101LEAFB#50 qualifies as a direct substitute based on identical electrical specifications, memory architecture, and package dimensions. The primary distinction is packaging format: the substitute is supplied in Tape & Reel (TR) configuration versus the original part's unspecified packaging, and product status transition from Obsolete to Active.

Parameter Comparison

Engineering Selection Recommendations

The R5F101LEAFB#50 is the direct functional equivalent of the R5F101LEAFB#X0. Both parts share identical core specifications, memory architecture, I/O configuration, and environmental ratings. Selection between these parts should be based on the following factors:

Product Status: The R5F101LEAFB#X0 is classified as Obsolete, indicating discontinued manufacturing and limited availability. The R5F101LEAFB#50 maintains Active status, ensuring ongoing supply chain availability and manufacturer support.

Compliance & Certification: Both parts maintain ROHS3 compliance and identical MSL 3 ratings, confirming equivalent environmental and regulatory standing.

Packaging Consideration: The R5F101LEAFB#50 is supplied in Tape & Reel (TR) format, which is standard for high-volume production environments. Original packaging format for the R5F101LEAFB#X0 is not specified in available documentation.

For new designs or production continuity, the R5F101LEAFB#50 is the appropriate selection due to active product status and confirmed availability.

Frequently Asked Questions (FAQ)

Q: Can R5F101LEAFB#50 be used as a direct replacement for R5F101LEAFB#X0 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The 64-LFQFP package dimensions, pin configuration, voltage ratings, memory organization, and peripheral functions are equivalent. No circuit modifications are required.

Q: What is the significance of the packaging suffix (#X0 vs. #50)?

A: The suffix designates the packaging format and distribution method. The #X0 variant uses an unspecified packaging format, while #50 indicates Tape & Reel (TR) packaging. Both contain identical die and electrical specifications. The suffix does not affect functional performance or electrical characteristics.

Q: Why is R5F101LEAFB#X0 marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production of this specific part variant. R5F101LEAFB#50 remains in Active production, making it the recommended choice for ongoing applications requiring this microcontroller series.

Q: Are there any differences in compliance or environmental ratings between these parts?

A: No. Both parts maintain ROHS3 compliance, identical MSL 3 ratings (168 Hours), and equivalent environmental operating ranges (-40°C ~ 85°C). Regulatory and reliability characteristics are identical.

Q: What is the 64-LFQFP package specification?

A: 64-LFQFP denotes a 64-pin Low-profile Quad Flat Package with 10mm x 10mm body dimensions. This is a surface-mount package standard for microcontroller applications. Both parts use this identical package specification.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that the production environment supports Tape & Reel (TR) packaging format used by R5F101LEAFB#50. The electrical and mechanical specifications are fully interchangeable. Verify that your assembly equipment is compatible with TR packaging if transitioning from the original part.